What is the “magic box” in Starcraft 2?I should add (as I recently found out to my cost) that if you are in the habit of adding eggs to control groups, an egg muta at base will cause your magic-boxing muta to clump wherever they are on the map. (As anywhere you click is now inside the magic box).

Can Changelings be detected?Sieged tanks have a good chance to kill them as they fire as soon as the changling drops, before it can morph. The downside is that if they drop a changling into a pack of SCVs, the siege tanks will do splash damage.